Hemp and pina stripping machine



"''ept. 16. 1924.A

L M, zALvlDEA HEIM? AND RINA STRIPPING MACHINE Sheets-Sheet I Filed Dec. 27, 1923 sept. 1s. 1924. 1,508,831-

M. ZALVUDEA HEM? AND FINA STRIPPING MACHINE Filed Dec. 27. 1923 2 Sheets-Sheet. 2

Patented Sept, l5, i924..

etres MARIANO ZALVIDEA, 0F MANILA, PIILIPPINE SLANDS.

HEMI? AND lNl-r STRIPPING IJ'IACHINE.A

Application filed December 27', 1923.

To @ZZ w 710m t may concern Be it known that I, Mani/ANO ZALvrDnA, a citizen of the Philippine Islands, owing allegiance to the Unitedv States, residing at Manila, Philippine islands, have invented certain new and useful Improvements in Hemp and Pina Stripping Machines; and l do hereby declare that the followingy is a full, clear, concise,and exact description of the invention, such as will enable others skilled in the` artto which it appertains to make and use the same. i

This invention relates to improvements in liber stripping machines and particularly to improvements over that type of lmachine for use in stripping fiber from hemp pulp and pina leaves described and claimed in myy United States pending application for Letters Patent Serial Numbered 598,907 including means for transmitting rotary motion to the fiber removing and carrying wheel and a novel arrangement of stripping knife and table therefor', such knife being adjustable Vto different positions for facilitating` the disengagement or removal of fiber from the pulp and vleaves treated by the machine.

lt is likewise an object of theinvention to provide a novel form of control for the machine, whereby the transmission of driving motion to the wheel, the release of the braking means therefor and the movement of the knife or table to proper position with respect to the adjustable knife will be simultaneously or collectively'effected by operation ofr but a single control device, thus rendering it possible for an operator to quickly and conveniently control the machine.

Other objects will be in part obvio-us and in part pointed out hereinafter,

In order that theinvention and itsmode of operation may be readily understood l y persons skilled in the art, l have, in the accompanying illustrative drawings and in the detailed following description based thereon vset out one embodiment of the same.

ln these drawings Figure l is a side.l elevation ofthe improved machine;

Figure. 2 is a vertical transverse sectionl therethrough Figure 3 is a topplan of the same; AFigure l is an elevation f the machine Serial No. 683,06*?.`

characters of reference will designate cor-' responding parts throughout, the improved machine may be stated to comprise a sup-y porting frame consisting of a` base portion l and supporting standards 2, said standards converging at their ends and having a circular bearing sleeve 3 foaned at said ends, while a shelf or bracket l is arranged between the intermediate portions of the standards and is adapted to have a bearing bracket 5 secured thereto through the medium of bolts 6 passing through the lianged feet of said bracket and through adjacent portions of said plate. l, thus immovably securing the same in position with respect to these standards.

A fiber carrying wheel 7 is provided the machine and is adapted to have the hub portion 8 thereof rotatably engagedwith a bearing pin c-r axle 9, which axle it will be noted, has one end thereof formed with a tapered bearing extremity removably engaged in thc vconcentric opening of the `brackn ret 5, whereupon a locking nut 10 is turned into engage-ment with the screw threaded extremity and thus .secures said axle in an immovable position with respect to the standards 2. Oilways or ducts ll are preferably formed in the axle 9 and communin cate with the outermost bearing surfacesV thereof, an oil cup or similar device 12 being engaged with the inner end of the bearing l0 and communicating with the adjacent end of the longitudinal duct 11. ln this connection, it will be noted that thelouter end of bearing pin or af-:le 9 is fornied with a flanged head 13 and furthermore, lthat a bearing bushing 14; is arranged within theL hub portion 8 of the wheel. 7 and is adapted to be engaged over the ad]acent portion of the` axle; An arm 15 having an enlarged screw threaded inner end l5 is turned into engagement with a concentrically arranged screw threaded opening' adjacent the hub portion 8 of the. wheel 7 whereby to enclose the outer end oit the axle or bearing pin rllhe inner side of the wheel 'l' has a plun rality olf parallel circuinterentially extending grooves 16 formed therein which are adapted to be engaged by the ribbed peripheral portion ot a 'trictional power transmitting pulley 17 mounted upon an axle 18 rotatably supported upon anti-trictional bearing devices 19 within a movably supported bearing backet 20. rlhis bearing bracket 20 is sli-dably received between guides 2l formed upon adjacent portions olil tle lower parts of the standards and is carried on a vertically extending arm 2l pivotally connected to the same as at the lower end ot said arm being pivotally connected as at 23 to a lever 24 pivotally mounted upon a bearing bracket 25 secured to the base l.

Upon the outer end of the shaft 18 there is mounted a power transmitting connection, such for example as a sprocket wheel, herein shown and designated by the numeral 26, said sprocket wheel being adapted to have a chain engaged about the same ani: entending from a suitable source of power, not shown.

Brake means are rrovided the wheel 'l and con prise flexible brake band 2T engaged over a portion oli a periphery oi the wheel and having' one end oit the same pivotally connected by a strap to portion ot 'the machine stand l as indicated ttt-29, while the opposite end ot such brake band is connected to a strap or similar device 30 which in turn is pivotally connected as at 3l to a lever pivtally mounted uponY a bracket 33 also mounted upon the base l; the op posite portion ol' such lever 32 beine' extended to a point in proximity to the tree portion of the lever 24, tor a purpose which will be presently described.

Pivotally connected in the upper end ol bearing bracket 34 arranged upon the stand l is a lever 35, which as will be noted, eirtends transversely across the upper sith` ot said base and carrying a pedal 36 upon its tree end. rlfhis lever 35 has its intermediate portion directly over the 'free ends of the several levers 24 and 32 and in consequence, with depression, such adjacent free portions of said levers will be engaged and in consequence, pivotal movement imparted to the same.

ln order that the pedal carrying portion of the lever 35 will be normally held in its uppermost position, a contractile coiled spring 37 is connected at one end to a fined portion of one of the standards 2 while the opposite or lower end thereof is connected to adjacent portions of the free end, Qt 911 neces-31 levers 24 and 32, portions ol which, as hereinbelore stated, underlie the intermediate portion ot' the lever 35. lrlence, an upward pull will be normally imparted to the tree end of the levers 24 and 32 by the coil spring 3T, causing the same together with the bearing bracket to be normally retained in their uppermost positions together with the pedal carrying end ol the lever 35.

lotatably mounted in the bearing sleeve 3, hereinbetore described is a shalt 38 adapt en to be placed under tension, at times, by means of a coil spring 39 engaged about a portion of the same and arranged within said bearing sleeve 3, oney end ot the spring being connected to an adjacent portion ot the bearing sleeve and the opposite end of such spring being connected to a portion ot the shaft 38. An arm 40 is liXedly secured to one end ot the shaft 38 and is adapted to impart oscillatory motion thereto thru the medium of a connecting rod 4l connected to the same by way ot aspring or yieldable coupling 42 pivotally connected to its outer end as at 43. rlhe lower end of this connecting rod 3l is extended downwardly into pivotal engagement with an intermediate portion ot the transversely disposed lever 35 and in consequence, with depression of the pedal 36 carried thereon, a l

downward pull will be imparted to the connecting rod 4l and in consequence, the desired rocking movement will be imparted to the shaft 38.

As shown in the Figure 7, the yieldable coupling 42 comprises an elongated cylindrical casing having its upper end partially closed as indicated at 42 whereby to engage the headed end of the arm employed .in the pivotal connection 43, while the lower end of said casing is open and internally screw threaded in order that ey threaded closure plug 42a may be turned into engagement therewith, The upper portion of the rod 4l is passed thru the plug 422L into the casing whereat it is connected to the upper end of a coiled spring 42b arranged within such casing. ln'this manner, it is obvious that a yieldable or spring connection will be effected between the arm 40 and the lever 35.

Also tixedly mounted upon said shaft 38, that is, upon the opposite portion thereof, is a bracket arm 44 carrying a table 45 upon the outer end thereof, which table is adapted to receive the hemp or pina leaves to be treated by the machine.`

To provide means Jfor stripping the liber from the hemp or pina leaves, a slotted arm 46 is extended obliquely upward from the upper converging portions ot the standards 2 and is adapted to receive the bolt 47 ot a knife securing and holding bracket 48 therethrough, a knife or blade 49 being suitably secured to said holder and adapted to have its position with respect to the table 45 suitably varied by proper adjustment of the bolt 47.

Laterally extending liber carrying arms 50 are secured to the circumferential portions of the wheel 7 in equidistant spaced relation and as will be understood, seive as means for permitting the attachment of kthe stalks or leaves thereto during a liber stripping operation such attachment being effected by impailing portions of the stalks or leaves upon the fiber carrying arms 50 or by slitting portions of the stalks or leaves and twisting the same thereabout in a manner to effect connection with the arms. Y The arms 50 shown in this particular embodiment are illustrated as being of triangular configuration, although it is of course to be borne in mind that the specific design of such arms may be widely varied, such as conditions or preference may dictate.

The operation of my improved machine may be reviewed as follows:

Thefknife 49 is iirst properly positioned in the slotted bracket arm 46 so that with movement of the table 45 in operative position therewith, such knife will function to effectually remove the pulp from the hemp or pina leaves being treated. With proper adjustment of the knife effected, the foot of the operator is engaged with the pedal 36 whereby to depress the same, causing downward movement of the transversely disposed lever 35 and 'in consequence, imparting downward thrust to the free portions of the several levers 24 and 32. Such downward movement of the levers 24 and 32 will cause collective movement of the frictional driving pulley 17 so as to engage the circumferentially grooved portion 16 of the wheel 7 and cause the slacking of the brake band 27 engaged over the peripheral portion of said wheel 7, releasing the same and permitting it to have free rotation under influence of the rotatably driven power transmitting pulley 17. Simultaneously, a' downward pull will be imparted to the lever oi arm 40, causing the table 45 to be moved upwardly into operative position with respect to the knife blade 49. Thus, when onevend of the hemp or pina leaves to be stripped is engaged with an adjacent arm 50 carried on the wheel 7, such matter will be drawn over the table 45 by the knife blade 49, whereby excess or waste matter will be removed therefrom, leaving only the fibers which are desired. lVhen the wheel 7 has rotated sufficiently to cause the matter being stripped of the fiber to pass entirely by the knife blade 49, the pedal 36 is immediately released, whereupon it will return to its normal uppermost position by reason of the upward pull imparted thereto by the contractile coil spring 37 connected at its lower end to the free ends of the levers 24 and 32. Simultaneously free end of the lever 32 will cause the same I to beV drawn upwardly, thus moving the opposite end downwardly and tightly engagiiig the flexible brake band 27 oveiI the peripheral portion of the wheel 7., thus braking the same and causing it tov immediately cease rotation. Also, with release of the pedal 36, the arm 40 will be returned to its normal position, thus permitting the table 45 to be lowered from engagement with the knife 49, whereupon an additional quantity of hempI pulp or pina leaves may be engaged tliereover for stripping by passage of the same by the knife. V

From the foregoing, it will be seen that I have provided a hemp or'pina leaf stripping Vmachine which is exceedingly simple in operation and control, the arrangement of the foot actuated lever 35 being such as to veffect collective or simultaneous control of the transmission of rotary motion to the wheel 7 and the release of the braking means therefor as well as movement of the table 45 into operative position with respect tothe previously properly adjusted knife 49. lWith release of the foot. actuated lever 35, the parts controlled thereby will immediately return to their normal positions', the brake band 27 exerting a braking force upon the peripheral portion upon the wheel 7 and immediately seeking it-s rotation.

vSO

lOO

rrlttiaiiifestly, the construction shown is.Y

capable of considerable modification and such modification as within the scope of my. claims, l consider within the spirit of my o erative osition with res ect to said.Y

knife.

2. A machine of the character described comprising in combination with a supporting frame, a fiber. pulling and carrying wheel rotatably mounted thereon, movably supported means for transmitting rotary motion to said wheel, a knife supported in` i the upper' end of said frame, a table pivotally Y transmitting means into engagement with the Wheel, the table into operative position With respect to said knife and releasingl the brake means from engagement with the peripheral portion of said wheel,

3. A machine of the character described comprising in combination with a supporting frame, a fiber pulling and carrying Wheel rotatably mounted thereon, laterally extending` arms upon said wheel, movably supported means for transmitting rotary motion to the Wheel, a knife adjustably supported in the upper end of the frame, a table pivotally supported on the frame in proximity to said knife, and means for simultaneously moving the motion transmitting means into engagement with the Wheel, the table into operative position with respect to said knife and releasing said braking means from a peripheral portion of the Wheel.

1l. A machine of the character described comprising in combination with a supporting frame, a fiber pulling and carrying Wheel rotatably supported tiiereon, a rotatable power transmitting pulley mevably supported on the frame and engageable with said wheel, a knife adjustably supported in the up 2er end of said frame.y a table pivotally supported upon the frame in prezzi to said knife, and means for collec. moving said power` transn'iitting pulley table.

5. A machine of the character described con'iprising in combination with a supporting frame, a fiber pulling and carrying Wheel rotatably mounted thereon, a rotatable power transmitting pulley mov-ably supported on the frame, and engageable with said Wheel, a knife adjustably mounted in the upper end of said franie, a table pivotally supported upon the frame and arranged in proximity to said knife, braking means for said Wheel normally engaged with its peripheral portion, and manually operable mea-ns for simultaneously effecting movement of the power transmitting pulley into engaoement with the Wheel, pivotal movement of the table into operative position with respect to the knife and disengagement of the braking means from the peripheral portion of said Wheel.

6. A machine of the character described comprising in combination With a frame, a bearing bracket fiXedly supported upon the intermediate portion of such frame, a liber pulling and carrying Wheel rotatably supported by the bearing bracket, said Wheel having the inner side of the rim thereof formed with circumferentially extending grooves, a second bearing bracket, a shaft rotatably mounted in said second bearing bracket, a friotional Wheel mounted on said shaft having the peripheral portion thereof ribbed and engageable with the grooves upon the inner side of the rim of said wheel, means for movably supporting said second bearinfr bracket with respect to the frame, aknife adjustably supported in the upper end of said frame, a table pivotally sup-- ported on the upper end of the frame in prof` mity to said knife, an arm fixedly connected to said table and adapted to rock the same, a flexible braking band fiizedly connected at one end to the frame and engaged over the peripheral portion of said .vhcel, an actuating lever connected to the free end of said braking band, and neans for simultaneously moving tie frict-ional Wheel into engagen'lent 'with the grooved inner side of the first Wheel rin pivotally movingthe table into operative position with respect to said knife and disengaging the flexible braking means from the peripheral portion of said first Wheel. y

In' Witness whereof l have hereunto set my hand.

MARIANO ZALVIDEA. 

